Casting apparatus for first quality and refined steels



Nov. 27, 1928.

F. GEISSLER CASTING APPARATUS FOR FIRST QUALITY AND REFINED STEELS FiledMarch 24, 1927 /n uenfor:

Patented Nov. 27, 1928.

UNITED STATES PATENT, OFFICE.

FRANZ GEIssnER, o1? nussnnnorw-onnnxnssnn, GERMANY.

Application filed March 24, 1927, Serial No. 178,070, and in GermanyDecember 8, 1925 Thisinvention relates to a castin ratus for firstquality and refine When this castingapparatus is used it is no longernecessary to clean and turn off the cast .1 blocks. The liquid masspoured into a funnel flows from below into the ingot molds throughtangential channels, a core being arranged at the point at which theliquid mass enters into the ingot mold so that an eddy is =1 produced inthe-flow of the liquid mass, all impurities contained in the liquid massbeing thus carried up into the head of the block which after solidifyingis cut ofi same as the root.

a An embodiment of the invention is shown,

by way of example, in the "accompanying drawing, in which Fig. 1 is alongitudinal section on line II of Fig. 2. I

Fig. 2 is a plan view of Fig. 1. The casting tube 0 having a funnelshaped orifice a and a lining b of refractory material is standing abovea vertical bore d from which channels 6, displaced the one withregard'to 25 the other, extend tangentially and terminate in circulargrooves 7 above which the ingot molds 9' stand upon the base plate h. Ineach circular groove f a core 5 is arranged. The head k of the ingotmold has a lining of re- 30 fractory material. 7

When the liquid metal is poured into the funnel-shaped mouth a it flowsthrough the bore 0?. channels e and grooves 7 into the ingot v steels.

molds g and gradually rises in the same. As

the channels e end tangentially in the grooves 1 f underneath the ingotmolds g, a circulating movement is communicated to the liquid masswhich, when the mass is rising in the ingot mold, produces an eddy sothat all impurities in the mass are thrown up into the top end it of theingot mold. The head of the cast block can be cut off same as the rootso that the cast block is perfectly pure and no cleaning or turning offis necessary, much time and material being thus saved. I

I claim r A casting apparatus for first quality and refined steelcomprising in combination, a base plate having a vertical bore at thecentre. a pouring tube above said vertical bore, a funnel shaped inletat the top end of said pouring tube, conical ingot molds on said baseplate around said pouring tube, circular grooves in said base plate oneunder each ingot mold and a channel connecting each circular groove withsaid vertical bore so' that the point at which said channel terminatesin said groove is tangential to said ingot mold so that a circulatingmovement around thecore formed underneath each ingot is communicated tothe liquid mass and the impurities are carried up to the top end of saidingot mold.

In testimony whereof I afiix my signature.

FRANZ GEISSLER.

